Videos tagged with OTM Ammunition

This YouTube video from SHOT Show 2020 features Black Hills Ammunition showcasing their new commercial line of the MKII military round. The ammunition is a 5.56mm caliber, featuring a 77-grain Sierra OTM (Open Tipped Match) projectile. Notably, the ammunition is available in large cans, with options for up to 460 rounds. This release allows civilian shooters access to a round previously primarily used by the military.

This expert-level analysis details the terminal ballistics of IMI's 77-grain OTM 5.56mm ammunition, often considered a clone of the Mark 262. Fired from a 10.5-inch barrel into ballistic gelatin, the ammunition demonstrated significant fragmentation and a substantial temporary stretch cavity, achieving an average velocity of 2367 FPS. The test highlights its performance characteristics, including deep penetration, while cautioning against its use if over-penetration is a primary concern.

This video details the process of duplicating Mk 262 Mod 1 ammunition, starting with factory Black Hills 77gr OTM as a baseline. It covers the history of the round, safety considerations for high-pressure 5.56 NATO loads, and a cost analysis showing significant savings through reloading. Baseline accuracy testing with the factory ammo yielded impressive results, averaging 0.595 MOA.